HomeMy WebLinkAboutD-353107ce)
L0 SURFACE WATER STANDARD PLAN NOTES
1? 1. THESE NOTES SHALL APPEAR ON PROJECTS FOR THE SURFACE WATER
rl- UTILITY.
C\1
CL 2. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A
PRE-CONSTRUCTION MEETING MUST BE HELD BETWEEN THE CITY OF
RENTON PLAN REVIEW SECTION AND THE APPLICANT.
ri)
3. ALL DESIGN AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE
RENTON MUNICIPAL CODE (RMC), THE LATEST EDITION OF THE STANDARD
SPECIFICATIONS FOR THE ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION
PREPARED BY WSDOT AND THE AMERICAN PUBLIC WORKS ASSOCIATION
(APWA), AS AMENDED BY THE CITY OF RENTON PUBLIC WORKS
DEPARTMENT. IT SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT
AND THE PROFESSIONAL CIVIL ENGINEER TO CORRECT ANY ERROR,
OMISSION OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN
THESE PLANS. ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST TO
THE CITY.
4. APPROVAL OF THIS ROAD, GRADING, PARKING AND DRAINAGE PLAN DOES
NOT CONSTITUTE AN APPROVAL OF ANY OTHER CONSTRUCTION (E.G.
DOMESTIC WATER CONVEYANCE, SEWER CONVEYANCE, GAS, ELECTRICAL,
ETC.) THE SURFACE WATER DRAINAGE SYSTEM SHALL BE CONSTRUCTED
ACCORDING TO THE APPROVED PLANS, WHICH ARE ON FILE NTH THE
CITY. ANY DEVIATION FROM THE APPROVED PLANS WILL REQUIRE WRITTEN
APPROVAL FROM THE CITY OF RENTON PUBLIC WORKS DEPARTMENT,
SURFACE WATER UTILITY SECTION.
5. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE
WHENEVER CONSTRUCTION IN IN PROGRESS.
6. GRADING ACTIVITIES (SITE ALTERATION) ARE LIMITED TO THE HOURS OF 7
A.M. TO 7 P.M. MONDAY THROUGH SATURDAY AND NO WORK ON SUNDAY
IS ALLOWED, UNLESS OTHERWISE APPROVED WITHA WRITEEN DECISION BY
THE CITY OF RENTON.
7. IT SHALL BE THE APPLICANIS/CONTRACTOR'S RESPONSIBILITY TO OBTAIN
ALL CONSTRUCTION EASEMENTS NECESSARY BEFORE INITIATING OFF-SITE
WORK. EASEMENTS REQUIRE CITY REVIEW AND APPROVAL PRIOR TO
CONSTRUCTION.
8. FRANCHISED UTILITIES OR OTHER INSTALLATIONS THAT ARE NOT SHOWN
ON THESE APPROVED PLANS SHALL NOT BE CONSTRUCTED UNLESS AN
APPROVED SET OF PLANS THAT MEET ALL REQUIREMENTS OF CHAPTER 4
OF THE SURFACE WATER DESIGN MANUAL ARE SUBMITTED TO THE CITY
OF RENTON.
9. DATUM SHALL BE NAVD 88 UNLESS OTHERWISE APPROVED BY THE CITY
OF RENTON. REFERENCE BENCHMARK AND ELEVATION ARE NOTED ON THE
PLANS.
10. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF
STORMWATER FACILITIES MUST BE SUBMITTED TO THE CITY FOR REVIEW
AND APPROVAL.
11. ALL U11LITY TRENCHES AND ROADWAY SUBGRADE SHALL BE BACKFILLED
AND COMPACTED TO 95 PERCENT DENSITY, STANDARD PROCTOR.
12. OPEN CUT`TING OF EXISTING ROADWAYS FOR NON-FRANCHISED UTILITY OR
STORM DRAINAGE WORK IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED
BY THE CITY OF RENTON AND NOTED ON THESE APPROVED PLANS. ANY
OPEN CUT SHALL BE RESTORED IN ACCORDANCE NTH THE CITY OF
RENTON TRENCH RESTORATION STANDARDS.
13. ALL SEDIMENTATION/EROSION FACILInES MUST BE IN OPERATION PRIOR TO
CLEARING AND BUILDING CONSTRUCTION, AND THEY MUST BE
SATISFACTORILY MAINTAINED UNTIL CONSTRUCTION IS COMPLETED AND THE
POTENTIAL FOR ON-SITE EROSION HAS PASSED.
14. ALL RETENTION/DETENTION FACILITIES MUST BE INSTALLED AND IN
OPERATION PRIOR TO OR IN CONJUCTION WITH ALL CONSTRUCTION
ACTIVITY UNLESS OTHERWISE APPROVED BY THE PUBLIC WORKS
DEPARTMENT, SURFACE WATER UTILITY SECTION.
15. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY
PREPARED FOUNDATION IN ACCORDANCE WITH THE CURRENT STATE OF
WASHINGTON STANDARD SPECIFICATION FOR ROAD AND BRIDGE
CONSTRUCTION. THIS SHALL INCLUDE NECESSARY LEVELING OF THE
TRENCH BOTTOMOR THE TOP OF THE FOUNDATION MATERIAL, AS WELL AS
PLACEMENT AND COMPACTION OF REQUIRED BEDDING MATERIAL, TO
UNIFORM GRADE SO THAT THE ENTIRE LENGTH OF THE PIPE WILL BE
SUPPORTED ON A UNIFORMLY DENSE, UNYIELDING BASE. ALL PIPE
BEDDING SHALL BE APWA CLASS -C-, VOTH THE EXCEPTIO OF PVC PIPE.
16. STEEL PIPE SHALL BE ALUMINIZED, OR GALVANIZED WITH ASPHALT
TREATMENT #1 OR BETTER INSIDE AND OUTSIDE.
17. ALL DRAINAGE STRUCTURES, SUCH AS CATCH BASINS AND MANHOLES
SHALL HAVE SOLID LOCKING LIDS. ALL DRAINAGE STRUCTURES
ASSOCIATED NTH A PERMANENT RETENTION/DETENTION FACILITY SHALL
HAVE SOLID LOCKING LIDS.
18. BUILDING AND OTHER STRUCTURES SHALL BE PLACED IN ACCORDANCE
WITH TABLE 4.1 EASEMENT WIDTHS AND BUILDING SETBACKS LINES.
19. ALL CATCH BASIN GRATES SHALL BE DEPRESSED 0.10 FEET BELOW
PAVEMENT LEVEL.
&NIV
A: 'Pa L * "
37338 Co"!, _a38311
20. ALL DRIVEWAY CULVERTS LOCATED WITHIN CITY OF RENTON
RIGHT-OF-WAY SHALL BE OF SUFFICIENT LENGTH TO PROVIDE A
MINIMUM 3:1 SLOPE FROM THE EDGE OF THE DRIVEWAY TO THE
BOTTOM OF THE DITCH. ROCK FOR EROSION PROTECTION OF
ROADSIDE DITCHES, WHERE REQUIRED, SHALL BE OF SOUND QUARRY
ROCK PLACED TO A DEPTH OF ONE (1) FOOT AND MUST MEET THE
FOLLOWING SPECIFICATIONS:
4-8 INCH ROCK 40-70% PASSING;
2-4 INCH ROCK 30-40% PASSING; AND
LESS THAN 2 INCH ROCK / 10-20% PASSING.
21. ALL BUILDING DOWNSPOUTS AND FOOTING DRAINS SHALL BE
CONNECTED TO THE STORM DRAINAGE SYSTEM, UNLESS APPROVED
BY THE CITY PLAN REVIEWER OR SURFACE WATER UTILITY SECTION.
AN ACCURATELY DIMENSIONED, CERTIFIED AS-BUILT DRAWING OF
THIS DRAINAGE SYSTEM WILL BE SUBMITTED TO THE CITY UPON
COMPLETION.
22. DRAINAGE OUTLETS (STUB-OUTS) SHALL BE PROVIDED FOR EACH
INDIVIDUAL LOT. EXCEPT FOR THOSE LOTS APPROVED FOR
INFILTRATION BY THE CITY. STUB-OUTS SHALL CONFORM TO THE
FOLLOWING:
A. EACH OUTLET SHALL BE SUITABLY LOCATED AT THE LOWEST
ELEVATION ON THE LOT, SO AS TO SERVICE ALL FUTURE ROOF
DOWNSPOUTS AND FOOTING DRAINS, DRIVEWAYS, YARD DRAINS,
AND ANY OTHER SURFACE OR SUBSURFACE DRAINS NECESSARY
TO RENDER THE LOTS SUITABLE FOR THEIR INTENDED USE.
EACH OUTLET SHALL HAVE FREE-FLOWING, POSITIVE DRAINAGE
TO AN APPROVED STORMWATER CONVEYANCE SYSTEM OR TO
AN APPROVED OUTFALL LOCATION.
B. OUTLETS ON EACH LOT SHALL BE LOCATED WITH A
FIVE-FOOT-HIGH, 2"x4" STAKE MARKED "STORM" OR "DRAIN".
THE STUB-OUT SHALL EXTEND ABOVE SURFACE LEVEL, BE
VISIBLE, AND BE SECURED TO THE STAKE.
C. PIPE MATERIAL SHALL CONFORM TO UNDERDRAIN
SPECIFICATIONS DESCRIBED IN CHAPTER 4 OF THE SURFACE
WATER DESIGN MANUAL AND, IF NON-METALLIC, THE PIPE
SHALL BE PLACED IN A TRENCH WITH A TRACING WIRE ABOVE
OR OTHER ACCEPTABLE DETECTION.
D. PRIVATE DRAINAGE EASEMENTS ARE REQUIRED FOR DRAINAGE
SYSTEMS DESIGNED TO CONVEY FLOWS THROUGH INDIVIDUAL
LOTS.
E. THE APPLICANT/CON TRACTOR IS RESPONSIBLE FOR
COORDINATING THE LOCATIONS OF ALL STUB-OUT CONVEYANCE
LINES NTH RESPECT TO OTHER UTILITIES (E.G. POWER, GAS,
TELEPHONE, TELEVISION).
F. ALL INDIVIDUAL STUB-OUTS SHALL BE PRIVATELY OWNED AND
MAINTAINED BY THE LOT HOME OWNER.
G. STORM DRAINAGE PIPE SYSTEMS SHALL NOT PENETRATE
BUILDING FOUNDATIONS, EXCEPT FOR SUMP PUMP DISCHARGE
LINES USED TO DRAIN CRAWL SPACES, PROVIDED THE SUMP
PUMP SYSTEM INCLUDES BACKFLOW PREVENTION OR A CHECK
VALVE.
23. ALL DISTURBED PERVIOUS AREAS (COMPACTED, GRADED,
LANDSCAPED, ETC.) OF THE DEVELOPMENT SITE MUST DEMONSTRATE
ONE OF THE FOLLOWING: THE EXISTING DUFF LAYER SHALL BE
STAGED AND REDISTRIBUTED TO MAINTAIN THE MOISTURE CAPACITY
OF THE SOIL, OR; AMENDED SOIL SHALL BE ADDED TO MAINTAIN THE
MOISTURE CAPACITY.
24. PROOF OF LIABILITY INSURANCE SHALL BE SUBMITTED TO THE CITY
PRIOR TO CONSTRUCT10N PERMIT ISSUANCE.
25. ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMITS BY THE CITY
OF RENTON DOES NOT RELIEVE THE OWNER OF THE CONTINUING
LEGAL OBLIGATION AND/OR LIABILITY CONNECTED NTH STORM
SURFACE WATER DISPOSITION. FURTHER, THE CITY OF RENTON DOES
NOT ACCEPT ANY OBLIGATION FOR THE PROPER FUNCTIONING AND
MAINTENANCE OF THE SYTEM PROVIDED DURING CONSTRUCTION.
26. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE
SAFEGUARD, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS,
ANDANY OTHER NEEDED ACTIONS TO PROTECT THE LIFE, HEALTH,
AND SAFETY OF THE PUBLIC, AND TO PROTECT PROPERTY IN
CONNEC11ON WITH THE PERFORMANCE OF WORK. ANY WORK WITHIN
THE TRAVELED RIGHT-OF-WAY THAT MAY INTERRUPT NORMAL
TRAFFIC FLOW SHALL REQUIRE A TRAFFIC CONTROL PLAN APPROVED
BY THE PUBLIC WORKS DEPARTMENT, TRANSPORTATION SYSTEMS
DIVISION. ALL SECTIONS OF THE WSDOT STANDARD SPECIFICATIONS
1-07-23 TRAFFIC CONTROL SHALL APPLY.
27. PROJECT LOCATED WITHIN THE AQUIFER PROTECTION AREA (APA)
SHALL COMPLY WITH SPECIAL REQUIREMENT #6 OF THE SURFACE
WATER DESIGN MANUAL AND AQUIFER PROTEC11ON REGULATIONS
(RMC 4-3-050).
STRUCTURAL NOTES
1. THESE PLANS ARE APPROVED FOR STANDARD ROAD AND DRAINAGE
IMPROVEMENTS ONLY. PLANS FOR STRUCTURES SUCH AS BRIDGES,
VAULTS, AND RETAINING WALLS REQUIRE A SEPARATE REVIEW AND
APPROVAL BY THE CITY PRIOR TO CONSTRUCTION
2. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZA11ON
AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO
SERVE AS RETAINING WALLS. ALL ROCKERIES IN CITY ROAD
RIGHT-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY
STANDARDS. ROCKERIES OUTSIDE OF ROAD RIGHT-OF-WAY SHALL BE
CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE.
SECTION 32, TWP 24 N, R 5 E, W.M.
UTILITY NOTE:
THE CONTRACTOR SHALL CALL THE UIRLITY LOCATION REQUEST CENTER
(ONE GALL CENTER; 1-800-424-5555) FOR FIELD LOCATION OF UTILITIES.
THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE LOCATION,
DIMENSION, AND DEPTH OF ALL EXISTING UTILITIES WITHIN THE PROJECT,
WHETHER SHOWN ON THESE PLANS OR NOT, BY POTHOLING THE UTILITIES
AND SURVEYING THE VERTICAL AND HORIZONTAL LOCATION PRIOR TO
CONSTRUCTION. ALL POTENTIAL UTfiJTY CONFLICTS SHALL BE POTHOLED A
MINIMUM OF FIVE WORKING DAYS IN ADVANCE OF ANY PIPELINE TRENCH
EXCAVATION. THE UTILSTIES SHOWN ON THE PLANS ARE BASED UPON
AVAILABLE INFORMATION AND ARE SUBJECT TO VARIATION. IF CONFLICTS
OCCUR THE CONTRACTOR SHALL CONSULT THE PROJECT ENGINEER TO
RESOLVE THE PROBLEM PRIOR TO PROCEEDING WITH CONSTRUCTION.
tOXAL
-ichm- A S - B U I L T ID 1- 131513111017
AS-BUILT SURVEY BY: EVAN N" RAM
No 1MV190, 2/14/11
WAHLSTROM, PLS#44651 a CITY OF LAKE WASHINGTON BLVD NORTH
B.P.B. Al
(INFORMED LAND SURVEY) gt� R RENTON STORM WATER & WATER MAIN
C4inmy 8r Omb-onme, Lm,- C.J.K. DATUM Public Works Dept. DRUNNOM 7
CONSULTING ENC31NEERS I VL IMPROVEMENTS
701 DEXTER AVENUE NORTH SUITE 200 THE ORIGINAL PLANS WERE STAMPED SA.C. WNOTONI�MH STORM NOTES AND DETAILS
SEATTLE, WASHINGTON 98109 <200 284-0S60 BY SC AND BB ON 2/14/2011 & 2/15/2011 NO. REVISION BY DATE APPR SQALL� 5�
B.P.B. 7 27
0 -3 �O 7
H